GameGlobalShaderConstantSetter(Sky *sky, bool *force_fog_off,
			f32 *fog_range, Client *client):
		m_sky(sky),
		m_force_fog_off(force_fog_off),
		m_fog_range(fog_range),
		m_client(client)
	{}
	~GameGlobalShaderConstantSetter() {}

	virtual void onSetConstants(video::IMaterialRendererServices *services,
			bool is_highlevel)
	{
		if(!is_highlevel)
			return;

		// Background color
		video::SColor bgcolor = m_sky->getBgColor();
		video::SColorf bgcolorf(bgcolor);
		float bgcolorfa[4] = {
			bgcolorf.r,
			bgcolorf.g,
			bgcolorf.b,
			bgcolorf.a,
		};
		services->setPixelShaderConstant("skyBgColor", bgcolorfa, 4);

		// Fog distance
		float fog_distance = *m_fog_range;
		if(*m_force_fog_off)
			fog_distance = 10000*BS;
		services->setPixelShaderConstant("fogDistance", &fog_distance, 1);

		// Day-night ratio
		u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
		float daynight_ratio_f = (float)daynight_ratio / 1000.0;
		services->setPixelShaderConstant("dayNightRatio", &daynight_ratio_f, 1);
		video::SMaterial texture=m_sky->getMaterial(1);
		services->setPixelShaderConstant("glow", (float*)&texture, 1);
		texture=m_sky->getMaterial(2);
		services->setPixelShaderConstant("color", (float*)&texture, 1);
	}
};